Chrome Version: 66.0.3342.3 (Official Build) canary (32-bit)
OS: Android 8.1.0; Pixel XL Build/OPM1.171019.012
Gmail: 8.1.7.183725757.release

What steps will reproduce the problem?
(1) enable canary for webview in android developer tools
(2) open an email thread with multiple emails in it
(3) scroll up and down

What is the expected result?

No wobble

What happens instead?

Recipient information wobbles.

Please use labels and text to provide additional information.

Recent regression, like a day or two. Needs a bisect.

For graphics-related bugs, please copy/paste the contents of the about:gpu
page at the end of this report.